+++ /dev/null
-/* -*- Mode: C; tab-width: 4 -*- */
-/* morph3d --- Shows 3D morphing objects */
-
-#if !defined( lint ) && !defined( SABER )
-static const char sccsid[] = "@(#)morph3d.c 4.07 97/11/24 xlockmore";
-
-#endif
-
-#undef DEBUG_CULL_FACE
-
-/*-
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee is hereby granted,
- * provided that the above copyright notice appear in all copies and that
- * both that copyright notice and this permission notice appear in
- * supporting documentation.
- *
- * This file is provided AS IS with no warranties of any kind. The author
- * shall have no liability with respect to the infringement of copyrights,
- * trade secrets or any patents by this file or any part thereof. In no
- * event will the author be liable for any lost revenue or profits or
- * other special, indirect and consequential damages.
- *
- * The original code for this mode was written by Marcelo Fernandes Vianna
- * (me...) and was inspired on a WindowsNT(R)'s screen saver (Flower Box).
- * It was written from scratch and it was not based on any other source code.
- *
- * Porting it to xlock (the final objective of this code since the moment I
- * decided to create it) was possible by comparing the original Mesa's gear
- * demo with it's ported version to xlock, so thanks for Danny Sung (look at
- * gear.c) for his indirect help.
- *
- * Thanks goes also to Brian Paul for making it possible and inexpensive
- * to use OpenGL at home.
- *
- * If you are interested in the original version of this program (not a xlock
- * mode, please refer to the Mesa package (ftp iris.ssec.wisc.edu on /pub/Mesa)
- *
- * Since I'm not a native English speaker, my apologies for any grammatical
- * mistake.
- *
- * My e-mail address is
- * m-vianna@usa.net
- *
- * Marcelo F. Vianna (Feb-13-1997)
- *
- * Revision History:
- * 27-Jul-97: Speed ups by Marcelo F. Vianna.
- * 08-May-97: Speed ups by Marcelo F. Vianna.
- *
- */
-
-/*-
- * PURIFY 3.0a on SunOS4 reports an unitialized memory read on each of
- * the glCallList() functions below when using MesaGL 2.1. This has
- * been fixed in MesaGL 2.2 and later releases.
- */
-
-/*-
- * due to a Bug/feature in VMS X11/Intrinsic.h has to be placed before xlock.
- * otherwise caddr_t is not defined correctly
- */
-
-#include <X11/Intrinsic.h>
-
-#ifdef STANDALONE
-# define PROGCLASS "Morph3d"
-# define HACK_INIT init_morph3d
-# define HACK_DRAW draw_morph3d
-# define morph3d_opts xlockmore_opts
-# define DEFAULTS "*delay: 1000 \n" \
- "*count: 0 \n"
-# include "xlockmore.h" /* from the xscreensaver distribution */
-#else /* !STANDALONE */
-# include "xlock.h" /* from the xlockmore distribution */
-#endif /* !STANDALONE */
-
-#ifdef USE_GL
-
-ModeSpecOpt morph3d_opts =
-{0, NULL, 0, NULL, NULL};
-
-#ifdef USE_MODULES
-ModStruct morph3d_description =
-{"morph3d", "init_morph3d", "draw_morph3d", "release_morph3d",
- "draw_morph3d", "change_morph3d", NULL, &morph3d_opts,
- 1000, 0, 1, 1, 4, 1.0, "",
- "Shows GL morphing polyhedra", 0, NULL};
-
-#endif
-
-#define Scale4Window 0.3
-#define Scale4Iconic 1.0
-
-#define VectMul(X1,Y1,Z1,X2,Y2,Z2) (Y1)*(Z2)-(Z1)*(Y2),(Z1)*(X2)-(X1)*(Z2),(X1)*(Y2)-(Y1)*(X2)
-#define sqr(A) ((A)*(A))
-
-/* Increasing this values produces better image quality, the price is speed. */
-#define tetradivisions 23
-#define cubedivisions 20
-#define octadivisions 21
-#define dodecadivisions 10
-#define icodivisions 15
-
-#define tetraangle 109.47122063449069174
-#define cubeangle 90.000000000000000000
-#define octaangle 109.47122063449069174
-#define dodecaangle 63.434948822922009981
-#define icoangle 41.810314895778596167
-
-#ifndef Pi
-#define Pi M_PI
-#endif
-#define SQRT2 1.4142135623730951455
-#define SQRT3 1.7320508075688771932
-#define SQRT5 2.2360679774997898051
-#define SQRT6 2.4494897427831778813
-#define SQRT15 3.8729833462074170214
-#define cossec36_2 0.8506508083520399322
-#define cos72 0.3090169943749474241
-#define sin72 0.9510565162951535721
-#define cos36 0.8090169943749474241
-#define sin36 0.5877852522924731292
-
-/*************************************************************************/
-
-typedef struct {
- GLint WindH, WindW;
- GLfloat step;
- GLfloat seno;
- int object;
- int edgedivisions;
- int VisibleSpikes;
- void (*draw_object) (ModeInfo * mi);
- float Magnitude;
- float *MaterialColor[20];
- GLXContext *glx_context;
-} morph3dstruct;
-
-static float front_shininess[] =
-{60.0};
-static float front_specular[] =
-{0.7, 0.7, 0.7, 1.0};
-static float ambient[] =
-{0.0, 0.0, 0.0, 1.0};
-static float diffuse[] =
-{1.0, 1.0, 1.0, 1.0};
-static float position0[] =
-{1.0, 1.0, 1.0, 0.0};
-static float position1[] =
-{-1.0, -1.0, 1.0, 0.0};
-static float lmodel_ambient[] =
-{0.5, 0.5, 0.5, 1.0};
-static float lmodel_twoside[] =
-{GL_TRUE};
-
-static float MaterialRed[] =
-{0.7, 0.0, 0.0, 1.0};
-static float MaterialGreen[] =
-{0.1, 0.5, 0.2, 1.0};
-static float MaterialBlue[] =
-{0.0, 0.0, 0.7, 1.0};
-static float MaterialCyan[] =
-{0.2, 0.5, 0.7, 1.0};
-static float MaterialYellow[] =
-{0.7, 0.7, 0.0, 1.0};
-static float MaterialMagenta[] =
-{0.6, 0.2, 0.5, 1.0};
-static float MaterialWhite[] =
-{0.7, 0.7, 0.7, 1.0};
-static float MaterialGray[] =
-{0.5, 0.5, 0.5, 1.0};
-
-static morph3dstruct *morph3d = NULL;
-
-#define TRIANGLE(Edge, Amp, Divisions, Z, VS) \
-{ \
- GLfloat Xf,Yf,Xa,Yb,Xf2,Yf2,Yf_2,Yb2,Yb_2; \
- GLfloat Factor=0.0,Factor1,Factor2; \
- GLfloat VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ; \
- GLfloat Ax,Ay; \
- int Ri,Ti; \
- GLfloat Vr=(Edge)*SQRT3/3; \
- GLfloat AmpVr2=(Amp)/sqr(Vr); \
- GLfloat Zf=(Edge)*(Z); \
- \
- Ax=(Edge)*(+0.5/(Divisions)), Ay=(Edge)*(-SQRT3/(2*Divisions)); \
- \
- Yf=Vr+Ay; Yb=Yf+0.001; \
- for (Ri=1; Ri<=(Divisions); Ri++) { \
- glBegin(GL_TRIANGLE_STRIP); \
- Xf=(float)Ri*Ax; Xa=Xf+0.001; \
- Yf2=sqr(Yf); Yf_2=sqr(Yf-Ay); \
- Yb2=sqr(Yb); Yb_2=sqr(Yb-Ay); \
- for (Ti=0; Ti<Ri; Ti++) { \
- Factor=1-(((Xf2=sqr(Xf))+Yf2)*AmpVr2); \
- Factor1=1-((sqr(Xa)+Yf2)*AmpVr2); \
- Factor2=1-((Xf2+Yb2)*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- \
- Xf-=Ax; Yf-=Ay; Xa-=Ax; Yb-=Ay; \
- \
- Factor=1-(((Xf2=sqr(Xf))+Yf_2)*AmpVr2); \
- Factor1=1-((sqr(Xa)+Yf_2)*AmpVr2); \
- Factor2=1-((Xf2+Yb_2)*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- \
- Xf-=Ax; Yf+=Ay; Xa-=Ax; Yb+=Ay; \
- } \
- Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2); \
- Factor1=1-((sqr(Xa)+Yf2)*AmpVr2); \
- Factor2=1-((Xf2+sqr(Yb))*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- Yf+=Ay; Yb+=Ay; \
- glEnd(); \
- } \
- VS=(Factor<0); \
-}
-
-#define SQUARE(Edge, Amp, Divisions, Z, VS) \
-{ \
- int Xi,Yi; \
- GLfloat Xf,Yf,Y,Xf2,Yf2,Y2,Xa,Xa2,Yb; \
- GLfloat Factor=0.0,Factor1,Factor2; \
- GLfloat VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ; \
- GLfloat Zf=(Edge)*(Z); \
- GLfloat AmpVr2=(Amp)/sqr((Edge)*SQRT2/2); \
- \
- for (Yi=0; Yi<(Divisions); Yi++) { \
- Yf=-((Edge)/2.0) + ((float)Yi)/(Divisions)*(Edge); \
- Yf2=sqr(Yf); \
- Y=Yf+1.0/(Divisions)*(Edge); \
- Y2=sqr(Y); \
- glBegin(GL_QUAD_STRIP); \
- for (Xi=0; Xi<=(Divisions); Xi++) { \
- Xf=-((Edge)/2.0) + ((float)Xi)/(Divisions)*(Edge); \
- Xf2=sqr(Xf); \
- \
- Xa=Xf+0.001; Yb=Y+0.001; \
- Factor=1-((Xf2+Y2)*AmpVr2); \
- Factor1=1-(((Xa2=sqr(Xa))+Y2)*AmpVr2); \
- Factor2=1-((Xf2+sqr(Yb))*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Y; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Y-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- \
- Yb=Yf+0.001; \
- Factor=1-((Xf2+Yf2)*AmpVr2); \
- Factor1=1-((Xa2+Yf2)*AmpVr2); \
- Factor2=1-((Xf2+sqr(Yb))*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- } \
- glEnd(); \
- } \
- VS=(Factor<0); \
-}
-
-#define PENTAGON(Edge, Amp, Divisions, Z, VS) \
-{ \
- int Ri,Ti,Fi; \
- GLfloat Xf,Yf,Xa,Yb,Xf2,Yf2; \
- GLfloat Factor=0.0,Factor1,Factor2; \
- GLfloat VertX,VertY,VertZ,NeiAX,NeiAY,NeiAZ,NeiBX,NeiBY,NeiBZ; \
- GLfloat Zf=(Edge)*(Z); \
- GLfloat AmpVr2=(Amp)/sqr((Edge)*cossec36_2); \
- \
- static GLfloat x[6],y[6]; \
- static int arrayninit=1; \
- \
- if (arrayninit) { \
- for(Fi=0;Fi<6;Fi++) { \
- x[Fi]=-cos( Fi*2*Pi/5 + Pi/10 )/(Divisions)*cossec36_2*(Edge); \
- y[Fi]=sin( Fi*2*Pi/5 + Pi/10 )/(Divisions)*cossec36_2*(Edge); \
- } \
- arrayninit=0; \
- } \
- \
- for (Ri=1; Ri<=(Divisions); Ri++) { \
- for (Fi=0; Fi<5; Fi++) { \
- glBegin(GL_TRIANGLE_STRIP); \
- for (Ti=0; Ti<Ri; Ti++) { \
- Xf=(float)(Ri-Ti)*x[Fi] + (float)Ti*x[Fi+1]; \
- Yf=(float)(Ri-Ti)*y[Fi] + (float)Ti*y[Fi+1]; \
- Xa=Xf+0.001; Yb=Yf+0.001; \
- Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2); \
- Factor1=1-((sqr(Xa)+Yf2)*AmpVr2); \
- Factor2=1-((Xf2+sqr(Yb))*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- \
- Xf-=x[Fi]; Yf-=y[Fi]; Xa-=x[Fi]; Yb-=y[Fi]; \
- \
- Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2); \
- Factor1=1-((sqr(Xa)+Yf2)*AmpVr2); \
- Factor2=1-((Xf2+sqr(Yb))*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- \
- } \
- Xf=(float)Ri*x[Fi+1]; \
- Yf=(float)Ri*y[Fi+1]; \
- Xa=Xf+0.001; Yb=Yf+0.001; \
- Factor=1-(((Xf2=sqr(Xf))+(Yf2=sqr(Yf)))*AmpVr2); \
- Factor1=1-((sqr(Xa)+Yf2)*AmpVr2); \
- Factor2=1-((Xf2+sqr(Yb))*AmpVr2); \
- VertX=Factor*Xf; VertY=Factor*Yf; VertZ=Factor*Zf; \
- NeiAX=Factor1*Xa-VertX; NeiAY=Factor1*Yf-VertY; NeiAZ=Factor1*Zf-VertZ; \
- NeiBX=Factor2*Xf-VertX; NeiBY=Factor2*Yb-VertY; NeiBZ=Factor2*Zf-VertZ; \
- glNormal3f(VectMul(NeiAX, NeiAY, NeiAZ, NeiBX, NeiBY, NeiBZ)); \
- glVertex3f(VertX, VertY, VertZ); \
- glEnd(); \
- } \
- } \
- VS=(Factor<0); \
-}
-
-static void
-draw_tetra(ModeInfo * mi)
-{
- GLuint list;
-
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]);
-
- list = glGenLists(1);
- glNewList(list, GL_COMPILE_AND_EXECUTE);
- TRIANGLE(2, mp->seno, mp->edgedivisions, 0.5 / SQRT6, mp->VisibleSpikes);
- glEndList();
-
- glPushMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-tetraangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + tetraangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + tetraangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]);
- glCallList(list);
-
- glDeleteLists(list, 1);
-}
-
-static void
-draw_cube(ModeInfo * mi)
-{
- GLuint list;
-
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]);
-
- list = glGenLists(1);
- glNewList(list, GL_COMPILE_AND_EXECUTE);
- SQUARE(2, mp->seno, mp->edgedivisions, 0.5, mp->VisibleSpikes)
- glEndList();
-
- glRotatef(cubeangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]);
- glCallList(list);
- glRotatef(cubeangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]);
- glCallList(list);
- glRotatef(cubeangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]);
- glCallList(list);
- glRotatef(cubeangle, 0, 1, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]);
- glCallList(list);
- glRotatef(2 * cubeangle, 0, 1, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]);
- glCallList(list);
-
- glDeleteLists(list, 1);
-}
-
-static void
-draw_octa(ModeInfo * mi)
-{
- GLuint list;
-
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]);
-
- list = glGenLists(1);
- glNewList(list, GL_COMPILE_AND_EXECUTE);
- TRIANGLE(2, mp->seno, mp->edgedivisions, 1 / SQRT6, mp->VisibleSpikes);
- glEndList();
-
- glPushMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-180 + octaangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-octaangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-octaangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-180 + octaangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-octaangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[6]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-octaangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[7]);
- glCallList(list);
-
- glDeleteLists(list, 1);
-}
-
-static void
-draw_dodeca(ModeInfo * mi)
-{
- GLuint list;
-
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
-#define TAU ((SQRT5+1)/2)
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]);
-
- list = glGenLists(1);
- glNewList(list, GL_COMPILE_AND_EXECUTE);
- PENTAGON(1, mp->seno, mp->edgedivisions, sqr(TAU) * sqrt((TAU + 2) / 5) / 2, mp->VisibleSpikes);
- glEndList();
-
- glPushMatrix();
- glRotatef(180, 0, 0, 1);
- glPushMatrix();
- glRotatef(-dodecaangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(-dodecaangle, cos72, sin72, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(-dodecaangle, cos72, -sin72, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(dodecaangle, cos36, -sin36, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]);
- glCallList(list);
- glPopMatrix();
- glRotatef(dodecaangle, cos36, sin36, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[6]);
- glCallList(list);
- glRotatef(180, 0, 0, 1);
- glPushMatrix();
- glRotatef(-dodecaangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[7]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(-dodecaangle, cos72, sin72, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[8]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(-dodecaangle, cos72, -sin72, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[9]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(dodecaangle, cos36, -sin36, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[10]);
- glCallList(list);
- glPopMatrix();
- glRotatef(dodecaangle, cos36, sin36, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[11]);
- glCallList(list);
-
- glDeleteLists(list, 1);
-}
-
-static void
-draw_icosa(ModeInfo * mi)
-{
- GLuint list;
-
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[0]);
-
- list = glGenLists(1);
- glNewList(list, GL_COMPILE_AND_EXECUTE);
- TRIANGLE(1.5, mp->seno, mp->edgedivisions, (3 * SQRT3 + SQRT15) / 12, mp->VisibleSpikes);
- glEndList();
-
- glPushMatrix();
-
- glPushMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-icoangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[1]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[2]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[3]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[4]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[5]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-icoangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[6]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[7]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[8]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-icoangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[9]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[10]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-icoangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[11]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[12]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[13]);
- glCallList(list);
- glPopMatrix();
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[14]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[15]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-icoangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[16]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[17]);
- glCallList(list);
- glPushMatrix();
- glRotatef(180, 0, 1, 0);
- glRotatef(-180 + icoangle, 0.5, -SQRT3 / 2, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[18]);
- glCallList(list);
- glPopMatrix();
- glRotatef(180, 0, 0, 1);
- glRotatef(-icoangle, 1, 0, 0);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mp->MaterialColor[19]);
- glCallList(list);
-
- glDeleteLists(list, 1);
-}
-
-static void
-reshape(ModeInfo * mi, int width, int height)
-{
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- glViewport(0, 0, mp->WindW = (GLint) width, mp->WindH = (GLint) height);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 15.0);
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void
-pinit(ModeInfo * mi)
-{
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- glClearDepth(1.0);
- glClearColor(0.0, 0.0, 0.0, 1.0);
- glColor3f(1.0, 1.0, 1.0);
-
- glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT0, GL_POSITION, position0);
- glLightfv(GL_LIGHT1, GL_AMBIENT, ambient);
- glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse);
- glLightfv(GL_LIGHT1, GL_POSITION, position1);
- glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
- glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_LIGHT1);
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_NORMALIZE);
-
- glShadeModel(GL_SMOOTH);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, front_shininess);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_specular);
-
- switch (mp->object) {
- case 2:
- mp->draw_object = draw_cube;
- mp->MaterialColor[0] = MaterialRed;
- mp->MaterialColor[1] = MaterialGreen;
- mp->MaterialColor[2] = MaterialCyan;
- mp->MaterialColor[3] = MaterialMagenta;
- mp->MaterialColor[4] = MaterialYellow;
- mp->MaterialColor[5] = MaterialBlue;
- mp->edgedivisions = cubedivisions;
- mp->Magnitude = 2.0;
- break;
- case 3:
- mp->draw_object = draw_octa;
- mp->MaterialColor[0] = MaterialRed;
- mp->MaterialColor[1] = MaterialGreen;
- mp->MaterialColor[2] = MaterialBlue;
- mp->MaterialColor[3] = MaterialWhite;
- mp->MaterialColor[4] = MaterialCyan;
- mp->MaterialColor[5] = MaterialMagenta;
- mp->MaterialColor[6] = MaterialGray;
- mp->MaterialColor[7] = MaterialYellow;
- mp->edgedivisions = octadivisions;
- mp->Magnitude = 2.5;
- break;
- case 4:
- mp->draw_object = draw_dodeca;
- mp->MaterialColor[0] = MaterialRed;
- mp->MaterialColor[1] = MaterialGreen;
- mp->MaterialColor[2] = MaterialCyan;
- mp->MaterialColor[3] = MaterialBlue;
- mp->MaterialColor[4] = MaterialMagenta;
- mp->MaterialColor[5] = MaterialYellow;
- mp->MaterialColor[6] = MaterialGreen;
- mp->MaterialColor[7] = MaterialCyan;
- mp->MaterialColor[8] = MaterialRed;
- mp->MaterialColor[9] = MaterialMagenta;
- mp->MaterialColor[10] = MaterialBlue;
- mp->MaterialColor[11] = MaterialYellow;
- mp->edgedivisions = dodecadivisions;
- mp->Magnitude = 2.0;
- break;
- case 5:
- mp->draw_object = draw_icosa;
- mp->MaterialColor[0] = MaterialRed;
- mp->MaterialColor[1] = MaterialGreen;
- mp->MaterialColor[2] = MaterialBlue;
- mp->MaterialColor[3] = MaterialCyan;
- mp->MaterialColor[4] = MaterialYellow;
- mp->MaterialColor[5] = MaterialMagenta;
- mp->MaterialColor[6] = MaterialRed;
- mp->MaterialColor[7] = MaterialGreen;
- mp->MaterialColor[8] = MaterialBlue;
- mp->MaterialColor[9] = MaterialWhite;
- mp->MaterialColor[10] = MaterialCyan;
- mp->MaterialColor[11] = MaterialYellow;
- mp->MaterialColor[12] = MaterialMagenta;
- mp->MaterialColor[13] = MaterialRed;
- mp->MaterialColor[14] = MaterialGreen;
- mp->MaterialColor[15] = MaterialBlue;
- mp->MaterialColor[16] = MaterialCyan;
- mp->MaterialColor[17] = MaterialYellow;
- mp->MaterialColor[18] = MaterialMagenta;
- mp->MaterialColor[19] = MaterialGray;
- mp->edgedivisions = icodivisions;
- mp->Magnitude = 2.5;
- break;
- default:
- mp->draw_object = draw_tetra;
- mp->MaterialColor[0] = MaterialRed;
- mp->MaterialColor[1] = MaterialGreen;
- mp->MaterialColor[2] = MaterialBlue;
- mp->MaterialColor[3] = MaterialWhite;
- mp->edgedivisions = tetradivisions;
- mp->Magnitude = 2.5;
- break;
- }
- if (MI_IS_MONO(mi)) {
- int loop;
-
- for (loop = 0; loop < 20; loop++)
- mp->MaterialColor[loop] = MaterialGray;
- }
-}
-
-void
-init_morph3d(ModeInfo * mi)
-{
- int screen = MI_SCREEN(mi);
- morph3dstruct *mp;
-
- if (morph3d == NULL) {
- if ((morph3d = (morph3dstruct *) calloc(MI_NUM_SCREENS(mi),
- sizeof (morph3dstruct))) == NULL)
- return;
- }
- mp = &morph3d[screen];
- mp->step = NRAND(90);
- mp->VisibleSpikes = 1;
-
- if ((mp->glx_context = init_GL(mi)) != NULL) {
-
- reshape(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
- mp->object = MI_COUNT(mi);
- if (mp->object <= 0 || mp->object > 5)
- mp->object = NRAND(5) + 1;
- pinit(mi);
- } else {
- MI_CLEARWINDOW(mi);
- }
-}
-
-void
-draw_morph3d(ModeInfo * mi)
-{
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- Display *display = MI_DISPLAY(mi);
- Window window = MI_WINDOW(mi);
-
- if (!mp->glx_context)
- return;
-
- glDrawBuffer(GL_BACK);
- glXMakeCurrent(display, window, *(mp->glx_context));
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix();
-
- glTranslatef(0.0, 0.0, -10.0);
-
- if (!MI_IS_ICONIC(mi)) {
- glScalef(Scale4Window * mp->WindH / mp->WindW, Scale4Window, Scale4Window);
- glTranslatef(2.5 * mp->WindW / mp->WindH * sin(mp->step * 1.11), 2.5 * cos(mp->step * 1.25 * 1.11), 0);
- } else {
- glScalef(Scale4Iconic * mp->WindH / mp->WindW, Scale4Iconic, Scale4Iconic);
- }
-
- glRotatef(mp->step * 100, 1, 0, 0);
- glRotatef(mp->step * 95, 0, 1, 0);
- glRotatef(mp->step * 90, 0, 0, 1);
-
- mp->seno = (sin(mp->step) + 1.0 / 3.0) * (4.0 / 5.0) * mp->Magnitude;
-
- if (mp->VisibleSpikes) {
-#ifdef DEBUG_CULL_FACE
- int loop;
-
- for (loop = 0; loop < 20; loop++)
- mp->MaterialColor[loop] = MaterialGray;
-#endif
- glDisable(GL_CULL_FACE);
- } else {
-#ifdef DEBUG_CULL_FACE
- int loop;
-
- for (loop = 0; loop < 20; loop++)
- mp->MaterialColor[loop] = MaterialWhite;
-#endif
- glEnable(GL_CULL_FACE);
- }
-
- mp->draw_object(mi);
-
- glPopMatrix();
-
- glFlush();
-
- glXSwapBuffers(display, window);
-
- mp->step += 0.05;
-}
-
-void
-change_morph3d(ModeInfo * mi)
-{
- morph3dstruct *mp = &morph3d[MI_SCREEN(mi)];
-
- if (!mp->glx_context)
- return;
-
- mp->object = (mp->object) % 5 + 1;
- pinit(mi);
-}
-
-void
-release_morph3d(ModeInfo * mi)
-{
- if (morph3d != NULL) {
- (void) free((void *) morph3d);
- morph3d = NULL;
- }
- FreeAllGL(mi);
-}
-
-#endif
projects / xscreensaver / blobdiff